(a) Differentiate between a saturated and an unsaturated solution. How will you test whether a given solution is saturated or not?(b) How would you prepare a saturated solution of sodium chloride in water at 25°C ? What will happen if this solution is cooled to 10°C?

A saturated solution is one that does not allow the dissolution of additional solutes at a specific temperature.

An unsaturated solution is one that allows the dissolution of additional solutes at the same temperature.

A saturated solution does not dissolve additional solutes or crystals in it. Therefore, the crystal keeps its size when it is put in a saturated solution.

On cooling the solutions, the saturated solution will first form crystals.

If a crystal dissolves in a solution, the solution is said to be unsaturated. This is because an unsaturated solution is capable of dissolving additional solutes into it.